Прием препаратов для похудения может снизить эффективность оральных контрацептивов

Специалисты предупреждают, что лекарства на основе GLP-1, такие как Мунджаро, могут ухудшать всасывание таблеток от беременности из-за замедления пищеварения или побочных эффектов вроде рвоты. Врачи рекомендуют использовать дополнительные методы защиты или переходить на внутриматочные спирали, а также учитывать, что снижение веса может unexpectedly повысить фертильность.

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Q: I keep hearing that weight-loss medications like Ozempic and Mounjaro can make birth control pills less effective. Is that true? A: It's a great question, and one that many women are asking as GLP-1 medications become more popular for weight loss and diabetes management. These medications work in several ways, including slowing how quickly the stomach empties. Because birth control pills are absorbed through the digestive tract, there has been concern that certain GLP-1 medications, especially tirzepatide (Mounjaro and Zepbound), could affect how well oral contraceptives work. For that reason, some women may be advised to use a backup form of contraception when starting the medication or after increasing the dose. Side effects such as vomiting or severe diarrhea can also make it harder for the body to absorb birth control pills properly. The good news is that most other forms of contraception, including IUDs, implants, injections, patches and vaginal rings, are not affected by GLP-1 medications. Another interesting thing doctors have noticed is that some women who have struggled with irregular periods or infertility may begin ovulating more regularly after losing weight and improving insulin resistance. In other words, fertility may improve, which can lead to some unexpected pregnancies. If you're taking a GLP-1 medication and rely on birth control pills, don't panic and don't stop either medication on your own. Instead, have a conversation with your healthcare provider or pharmacist about whether you should use additional contraception or whether another birth control method might be a better fit for you. As with many things in medicine, the answer isn't one-size-fits-all, but understanding how these medications work can help you make informed decisions and avoid surprises. Dr. Jessica Scotchie is a specialist in reproductive endocrinology and infertility with Tennessee Reproductive Medicine and is a member of the Chattanooga-Hamilton County Medical Society.